*{margin:0;padding:0}
        img{
            vertical-align: middle;
        }
        a{
            font-style: normal;
        }


        .box{
            position:fixed;
            bottom:20px;
            right:0;
            width:760px;
            height: 320px;
            border:1px solid #ccc;
            z-index: 999;
        }

        .box>img{
            width:100%;
        }

        .box>a{
            position: absolute;
            right:0;
            top:-22px;
            width:20px;
            height:20px;
            border:1px solid #ccc;
            text-align: center;
            font-size: 20px;
            line-height: 20px;
            color:black;
            cursor: pointer;
        }